The act of getting a piece of shit or cum and putting it on the inside of a public vending machine. When the item (candy, toy, etc.) drops to the slot, it will land in shit or cum making the buyer disgusted and enraged. Preferably a small candy machine or toy machine works best. A cruel joke to do when bored.

If someone has been provoked or wound up enough to get annoyed, respond angrily, or lose their cool, they have been cranked - or they are cranked. The word is then often employed on its own to crank them even further.

See also: To crank, crankage.

Person 1: Haha, that game lacks creative vision.
Person 1: STFU it's a great game you idiot.
Person 2: Cranked.